X-ray Crystallographic Analysis of the Oxytellurium Compounds [10-Te-4(C30)] and Solvent Effect on the Hypervalency

Sato, Soichi; Kondo, Norihisa; Furukawa, Naomichi

doi:10.1021/om00011a066

Cited by 22 publications

(7 citation statements)

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“…An ORTEP diagram of a single molecule of 2a showing the numbering scheme is displayed in Figure . The Te(1)−O(1) bond distance of 2a is 2.469(3) Å which is much longer than that of the Te−O single bond (2.101 Å) but agrees with the apical Te−O bond distance of the 10−Te−4(C3O) species which has an electron-withdrawing substituent on an oxygen atom …”

Section: Resultssupporting

confidence: 64%

“…Generally, the 125 Te chemical shifts of triaryloxytellurium compounds in the form of hypervalent and onium salt species are not significantly different . To test whether the structures of 2a and 2b were of the hypervalent type, [10−Te−4(C3O)] or the corresponding onium salt, their IR spectra were measured by three different methods (KBr, mull, and CHCl 3 ).…”

Section: Resultsmentioning

confidence: 99%

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Monooxytellurane(IV) Derivatives ([10−Te−4(C3O)]). Syntheses and Molecular Structure of Triaryltelluronium Carboxylate Compounds

et al. 1998

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Bis(2,2‘-biphenylylene)tellurane (1) undergoes a ring-opening reaction on treatment with acetic and benzoic acid to afford the triaryltelluronium carboxylate derivatives [10−Te−4(C3O)] (2). (2,2‘-Biphenylylene)(2-biphenylyl)benzoyloxytellurane (λ4-tellane) (2a) and (2,2‘-biphenylylene)(2-biphenylyl)acetyloxytellurane (λ4-tellane) (2b) were subjected to X-ray crystallographic analysis, which revealed that they crystallize as monomers and dimers, respectively, and that their Te centers have a distorted trigonal-bipyramidal bonding geometry.

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Section: Resultssupporting

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Monooxytellurane(IV) Derivatives ([10−Te−4(C3O)]). Syntheses and Molecular Structure of Triaryltelluronium Carboxylate Compounds

et al. 1998

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“…Apparently, there is a tendency for heterocyclic tellurium derivatives to participate in intermolecular p-bond interactions. Of the several arene rings present in the halogen-free (2,2'biphenylylene) (2-biphenylyl) (p-nitrophenoxy) tellurium (IV) 60 [ZIQWIF], one of the arene rings of biphenylyl becomes involved in Te … p interactions, leading to dimer formation, with a Te … centroid distance of 3.571 A ˚(Fig. 16).…”

Section: Dimeric Supermolecules Self-assembled Through Tellurium P-c ...mentioning

confidence: 99%

Tellurium⋯π-aryl interactions: a new bonding motif for supramolecular self-assembly and crystal engineering

Zukerman-Schpector

Haiduc

2002

CrystEngComm

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A search of the Cambridge Structural Database (CSD) was performed to identify Te … p-aryl interactions not reported before in the literature. The examination of the distance between tellurium atoms and aryl group centroids and the analysis of crystal packing, using deposited crystal structure data, produced a list of organotellurium compounds which showed a variety of Te … p bonding interactions. These include inter-ionic Te … p interactions in anion-cation ion pairs, intramolecular Te … p-aryl interactions in mono-and di-nuclear covalent molecular compounds, as well as in dimeric and tetrameric supermolecules or in supramolecular polymeric arrays formed through secondary bonds. Most interesting was the finding that intermolecular Te … p aryl interactions can connect molecular tectons, leading to supramolecular self-assembly with formation of dimeric and polymeric superstructures. Finally, Te … p aryl interactions may interconnect polymeric chains formed through Te … X secondary bonds into 2D and perhaps 3D networks. Thus, the Te … aryl interactions appear as a new bonding motif for supramolecular self-assembly, which could be exploited for crystal engineering in organotellurium chemistry, i.e. for the design of new materials with attractive useful properties.

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“…After manual sorting, a total of eight tellurium(IV) structures were found to exhibit Te(lone pair)···π (aryl) interactions; data are summarised in Table 12.1 and chemical diagrams of the interacting species are shown in Scheme 12.2 [18][19][20][21][22][23][24][25]. Two supramolecular aggregation patterns are noted in this series.…”

Section: Te(lone Pair) π (Aryl) Synthons In Tellurium(iv) Strucmentioning

confidence: 94%

Supramolecular Aggregation Patterns and Stereochemical Consequences of Tellurium(Lone Pair)…π(Aryl) Interactions

Haiduc

Tiekink

Zukerman-Schpector

2012

The Importance of Pi‐Interactions in Crystal Engineering

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While the formation of π-aryl bonds is typical for transition metals, the main-group elements display a reduced tendency to form π -aryl complexes. This being stated, it was established by the report of the so-called "Menschutkin's complexes", for example, C 6 H 6 .SbCl 3 [1], that main-group element compounds can and do form such interactions. In the case of transition-metal systems, metal···π interactions are readily rationalised in terms of electron donation from the electron-rich aryl system to the electropositive metal centre. By contrast, allied interactions with main-group elements, often having a lone pair of electrons, seems counterintuitive. However, as indicated from macromolecular chemistry [2,3], heteroatom(lone pair)···π (aryl) interactions are stabilising. Theoretical studies indicate energies of stabilisation ranging from 1.5 to 5.1 kJ mol −1 [4,5]. The heteroatom(lone

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X-ray Crystallographic Analysis of the Oxytellurium Compounds [10-Te-4(C30)] and Solvent Effect on the Hypervalency

Cited by 22 publications

References 0 publications

Monooxytellurane(IV) Derivatives ([10−Te−4(C3O)]). Syntheses and Molecular Structure of Triaryltelluronium Carboxylate Compounds

Monooxytellurane(IV) Derivatives ([10−Te−4(C3O)]). Syntheses and Molecular Structure of Triaryltelluronium Carboxylate Compounds

Tellurium⋯π-aryl interactions: a new bonding motif for supramolecular self-assembly and crystal engineering

Supramolecular Aggregation Patterns and Stereochemical Consequences of Tellurium(Lone Pair)…π(Aryl) Interactions

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